AddCSLuaFile( "cl_init.lua" )
AddCSLuaFile( "shared.lua" )
include('shared.lua')


function ENT:Initialize()
    self:SetModel(self.WorldModel)

    self:PhysicsInit( SOLID_VPHYSICS )
    -- self:PhysicsInitSphere(50)
    self:SetMoveType( MOVETYPE_VPHYSICS )
    self:SetSolid( SOLID_VPHYSICS )
    self:DrawShadow(false)

    // don't do impact damage
    -- self:SetTrigger(true)
    -- self:SetCollisionGroup(COLLISION_GROUP_WEAPON)

    local phys = self:GetPhysicsObject()
    if IsValid(phys) then
        phys:Wake()
    end

    self:Fire("kill", "", 30)

    self.HitSomething = false
end

function ENT:Use(ply)
    self.RemoveNext = true
end

function ENT:Think()
    if self.RemoveNext && IsValid(self) then
        self.RemoveNext = false
        self:Remove()
    end
    if self.HitSomething && self:GetVelocity():Length2D() < 1.5 then
        self.HitSomething = false
        local knife = ents.Create(self.WeaponClass)
        knife:SetPos(self:GetPos())
        knife:SetAngles(self:GetAngles())
        knife:Spawn()
        self:Remove()
        local phys = knife:GetPhysicsObject()
        if IsValid(phys) then
            phys:SetVelocity(self:GetVelocity())
        end
    end

    self:NextThink(CurTime())
    return true
end

local function addangle(ang,ang2)
    ang:RotateAroundAxis(ang:Up(),ang2.y) -- yaw
    ang:RotateAroundAxis(ang:Forward(),ang2.r) -- roll
    ang:RotateAroundAxis(ang:Right(),ang2.p) -- pitch
end

function ENT:PhysicsCollide( data, physobj )
    -- print(data.OurOldVelocity:Length())

    if self.HitSomething then return end
    if self.RemoveNext then return end

    local ply = data.HitEntity
    if IsValid(ply) && ply:IsPlayer() then

        -- self.RemoveNext = true
        -- self:SetColor(Color(0,0,0,0))

        local dmg = DamageInfo()
        dmg:SetDamage(120)
        dmg:SetAttacker(self:GetOwner())
        ply:TakeDamageInfo(dmg)
        self:EmitSound("physics/flesh/flesh_squishy_impact_hard" .. math.random(1, 4) .. ".wav")

        local pos = ply:GetPos() + Vector(00,0,40)
        local ang = ply:GetAngles() * 1
        addangle(ang, Angle(-60,0,0))

        timer.Simple(0, function ()
            local rag = ply:GetRagdollEntity()

            if IsValid(rag) then
                local pos, ang = rag:GetBonePosition(0)
                local vec = Vector(0, 16, -14)
                vec:Rotate(ang)
                pos = pos + vec
                addangle(ang, Angle(30, -90, 0))

                -- local knife = ents.Create("prop_physics")
                -- knife:SetModel("models/weapons/w_knife_t.mdl")
                -- knife:SetCollisionGroup(COLLISION_GROUP_DEBRIS)
                -- knife:SetPos(pos)
                -- knife:SetAngles(ang)
                -- knife:Spawn()

                -- local phys = knife:GetPhysicsObject()
                -- if IsValid(phys) then
                --  phys:EnableCollisions(false)
                -- end


                -- constraint.Weld(rag, knife, 0, 0, 0, true)

                -- rag:CallOnRemove("knife_cleanup", function() SafeRemoveEntity(knife) end)

            end

        end)
    end

    self.HitSomething = true
end